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Statistical-Based Approach for Predicting the Mechanical Properties of Geopolymer Concretes

机译：基于统计的地质聚合物混凝土力学性能预测方法

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摘要

The manuscript presented here is based on the investigation of the mechanical properties of fly-ash-based geopolymer concrete and their link to fly-ash (FA) characteristics. A database of 32 FA samples was created. Each FA sample was analyzed in terms of chemical composition, crystallo-graphic properties, and particle size distribution. The mechanical performance of geopolymer concrete (GPC) made from each FA sample was evaluated in terms of density, setting time, compressive and flexural strengths, static elastic modulus, and Poisson's ratio. The database was randomly divided into two sets; one consisting of 24 FA samples for model building using linear regression, and another consisting of eight FA samples for validation. The results show that the density, elastic modulus, as well as the compressive and flexural strengths of GPC can be predicted with reasonable accuracy by analyzing the chemical, physical, and crystallographic properties of a given FA and following the steps presented in this study.
机译：本文介绍的手稿是基于对粉煤灰基土聚合物混凝土的机械性能及其与粉煤灰（FA）特性的联系的研究而得出的。创建了一个包含32个FA样品的数据库。根据化学成分，晶体学性质和粒度分布对每个FA样品进行了分析。根据密度，凝固时间，抗压和抗弯强度，静态弹性模量和泊松比，评估了由每个FA样品制成的地聚合物混凝土（GPC）的机械性能。该数据库被随机分为两组。一个由24个FA样本组成，用于使用线性回归建立模型，另一个由8个FA样本组成，用于验证。结果表明，通过分析给定FA的化学，物理和晶体学性质并遵循本研究中介绍的步骤，可以合理合理地预测GPC的密度，弹性模量以及抗压强度和抗折强度。

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  • 来源
    《Geopolymer binder systems》|2012年|119-143|共25页
  • 会议地点 San Diego CA(US)
  • 作者

    E. Ivan Diaz-Loya; Erez N. Allouche; Dexter Cahoy;

  • 作者单位

    CeraTech Inc, Baltimore, MD, United States of America Dept. of Civil Engineering, Louisiana Tech Univ., 3501, Brehms Lane Suite D, Baltimore, Maryland 21213, United States of America;

    Dept. of Civil Engineering, Louisiana Tech Univ., 599 W. Arizona Ave. Ruston, Louisiana 71272, United States of America;

    Dept. of Mathematics and Statistics, Louisiana Tech Univ., 305 Wisteria St., P.O. Box 3178, Ruston, Louisiana 71272, United States of America;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    geopolymer; alkali-activated cement; mechanical characterization; fly ash;

    机译：地质聚合物碱活化水泥；机械特性粉煤灰;

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